The new "Red Valve" series TB202 valve (12AX7) mic pre-amp is a twin channel valve mic preamplifier that features switchable phantom power, phase reverse, -20dB Pad, optical compressor, and fully functional EQ all housed together in a single 1U rack mount sized chassis.

Extended information

Tailored use in the home project studio, the "Red Valve" TB202 is perfectly suited for use as front end mic inputs for your digital recorder or any other application requiring mic preamplification.

Technical specifications

Performance:
THD + Noise (un-weighted):0.05%@0dB Tube,
Drive:10%@30dB Tube Drive
Input Impedance: XLR: 5k ohms 5k Ohms,
¼ “ High Z: 1Meg ohms

Output Impedance:
XLR Balanced: 51 ohms,
¼” TRS Unbalanced: 51 ohms
Panel Controls: Gain: 0dB to +30dB,
20dB pad,
Phase Reverse,
+ 48V Phantom Power
Metering: 8 Segmented LED: -25dBu to +18dBu

Power Supply:
Type: Linear Supply,
Switchable:110V / 220V,
Input:17 VAC / 1000mA


* Hand tested 12AX7 tube
* CLASS A Transformless high voltage signal path
* Switchable Phantom Power
* Switchable Phase reversal
* Optical Compressor
* EQ circuitry
* Input gain control
* -20dB pad
* 110v-220v External power supply
* Size : 1U Rack